Improvement in feed-water heaters



I. P-MAGOON.

FEED-WATER HEATER. I N.1-33,463, 7 Patented 0:117, 1876.

N PETERS, FHOTD-LITHOGRAPHER. WASHINGTON. D C.

NITED STATES PATENT QFFIGE- ISRAEL P. MAGOON, OF ST. JOHNSBURY, VERMONT.

IMPROVEMENT IN FEED-WATER HEATERS.

Specification forming part of Letters Patent No. 183.463. dated October 17, 1876; application filed September 15, 1876.

To all whom it may concern:

Be it known that I, ISRAEL P. MAGOON, of St. Johnsbury, in the county of Caledonia and State of Vermont, have invented a new Improvement in Feed- Water Heaters; and I do hereby declare the following, when taken in connection with the accompanying drawin gs and the letters of reference markedthereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, 1n

Figure l a sectional side view, and in Fig. 2 a transverse section.

This invention relates to an improvementin that class of feed-water heaters especially designed for locomotives, and to be arranged around the smoke-stack, so that the heat from the stack or the exhaust may be the means of heating the feed-water.

The invention consists in a series of tubes encircling the smoke-stack, within a chamber opening from a vertical or feed-Water pipe, and terminating in a chamber or stand-pipe, which leads from near the top into an exit pipe or leader to the boiler, as more fully hereinafter described.

A is the smoke-stack proper, around which a chamber, B, is formed by a suitable casing, 0. Into this chamber a vertical pipe, D, is arranged, to which the water from the pump is forced. E is the exit-pipe, also vertical, and leading to the boiler. Beside the pipe D the stand -pipe or waterchamber F is vertically arranged, opening into the pipe E at the top, as at c. From the pump-pipe D around the stack, and to the chamber F, a succession of tubes, H, are arranged, one above the other, so as to connect the said pipes D and F, and so that the water forced into the pipe D will pass freely around the stack through the several pipes H to the stand-pipe F.

r The exhaust steam is admitted into the chamber B to circulate around the several pipes H, and heat the water as it gradually rises. Thus heated, the water finally passes through the aperture 6 to the leader E, thence to the boiler. The several circulating-pipes H are attached to their respective vertical pipes by nuts or union joints, so that either may be readily removed without disturbing an other-as for repairsand without removing the stack, it only being necessary to raise the shell 0.

I claim- In locomotive feed-water heaters, the combination of the vertical inlet and outlet pipes, the stand-pipe, communicating with the outlet-pipe near its upper end, and encirclingpipes connecting the inlet-pipe with the said stand-pipe, all arranged in a chamber around the smoke-stack, substantially as described.

I. P. MAGOON.

Witnesses:

GEO. W. HASKELL, JOHN W. LEWIs. 

